Uni Ecto Plugin Access

Mastering Database Multi-Tenancy: The Ultimate Guide to the Uni Ecto Plugin

In the modern landscape of Software as a Service (SaaS), multi-tenancy is no longer a luxury—it’s a necessity. Whether you are building a white-label CRM, an enterprise ERP, or a simple API for startups, you need a way to isolate customer data securely.

If you are an Elixir developer using Phoenix Framework and Ecto, you have likely heard the siren call of the uni_ecto_plugin. uni ecto plugin

While Ecto provides the foundation for database communication, the uni_ecto_plugin extends its capabilities to handle the complex routing, migrations, and query scoping required for robust multi-tenant architectures. In this article, we will dive deep into what this plugin is, why you need it, and how to master its implementation. Mastering Database Multi-Tenancy: The Ultimate Guide to the

Pattern 4: Error Recovery and Fallbacks

Uni provides Uni.on_error/2 to rescue failed steps: name: company_name |&gt

Uni.new()
|> Ecto.insert(changeset)
|> Uni.on_error(:insert, fn _step, error, ctx ->
  if error.reason == :invalid do
    # Log and return a default
    :ok, %MyApp.Useremail: "fallback@example.com"
  else
    :error, error
  end
end)

A. The Universal Adapter Pattern

The plugin introduces a set of generic "Behaviors" that external services must conform to.

• Implementation: Developers write code against generic interfaces (e.g., sendEmail(), storeData(), processPayment()).
• The Plugin: The Uni Ecto Plugin translates these generic calls into provider-specific SDK calls.
  • Example: Changing from AWS S3 to Google Cloud Storage requires only changing the Ecto Plugin config, not the application code.

4. Plugin Structure (Example: SoftDeletePlugin)

3. Insert tenant record into public tenants table

%Tenantprefix: prefix, name: company_name |> Repo.insert!() # Runs in 'public' schema

:ok, prefix end